For events A and B, P(A)=0.7, P(B)=0.3, and P(A upside down U B)=0.15 Find P(A|B)
M math18 New member Joined Feb 25, 2011 Messages 2 Feb 26, 2011 #1 For events A and B, P(A)=0.7, P(B)=0.3, and P(A upside down U B)=0.15 Find P(A|B)
pka Elite Member Joined Jan 29, 2005 Messages 11,995 Feb 27, 2011 #2 math18 said: For events A and B, P(A)=0.7, P(B)=0.3, and P(A upside down U B)=0.15 Find P(A|B) Click to expand... We use the formula, P(A∣B)=P(A∩B)P(B) .\displaystyle P(A|B)=\dfrac{P(A\cap B)}{P(B)}~.P(A∣B)=P(B)P(A∩B) .
math18 said: For events A and B, P(A)=0.7, P(B)=0.3, and P(A upside down U B)=0.15 Find P(A|B) Click to expand... We use the formula, P(A∣B)=P(A∩B)P(B) .\displaystyle P(A|B)=\dfrac{P(A\cap B)}{P(B)}~.P(A∣B)=P(B)P(A∩B) .
